baker



(No Model.) Y 2 Sheets$heet 1.

W.-R. BAKER.

GRAIN BINDER.

No. 283,744. Patented Aug. 2-8, 1883.

WITNESSES INVENTOR Williamflfiwker By his flitorneys Z (No Model.) 2 Sheets-Sheet 2.

W3. BAKER.

GRAIN BINDER. No. 283,744. I Patented Aug. 28, 1883.

WITNESSES INVENTOR- STATES PATENT FFICE- "WILLIAM R. BAKER, OF CHICAGO, ILLINOIS, ASSIGNORTO THE MCCORMICK HARVESTING MACHINE COMPANY, OF SAME PLACE.

GRAIN-BINDER.

SPECIFICATION forming part Of Letters Patent No, 283,744, dated August 28, 18-83 Application filed April 27, 1883. (No model.) I I To aZZ whom, it may concern.-

Be it known that I, WILLIAM R. BAKER, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Grain-Binders, of which the following is a specification.

In a widely-known form of binder, manufactured by the McCormick Harvesting Machine Company for some seasons past, the grain, as it comes over the head of the elevator, is urged forward down an inclined chute or passage by packingarms, and against compressing or tripping fingers mounted upon or pivoted to the outer end of a supportingbar, which at the inner end is pivoted to a heelextension from a vibrating binding-arm, so that the latter in its vibration to encircle the gavel may tend to draw the fingers toward it and subject the bundle to additional compression. An automatic tripping device operated either by the rockingof the compressor-fingers on their pivot as the grainaecumulates against them or by other meansas, for instance, an independent trip-1ever, such as in a recent improvement made by me brings the binder-gearing at the proper moment into engagement with a constantly-driven part of the harvester, whereupon a single binding operation ensues. In this movement the binder-arm is vibrated upon its pivot by means of a pitman connecting it with a wrist-pin upon a gear and cam-wheel in the bindertrain, and constituting in effect the master-wheel of the binder. The compressing-fingers and supportingbar are also held in their elevated position to shut off escape of grain from the chute or binding-receptacle until the band has been applied and the knot tied, and to oiiiciate in the ultimate compression above referred to by means of a rockshaft and liulcconnection, one of which has usually been made elastically yielding to afford a springseat to said supporting-bar, with a T-lever pivoted by one arm to the post-frame of the binder, by another to one of said links, and taking by means of a pin or roller on the third into a camtrack upon the master-wheel, the track having such outline as to retain the supporting-bar in its elevated position until the bound sheaf is to be ejected, then sud denly lower it to open the chute, and immediately after restore it to position to bring the compressingfingers in action for the next binding operation, at which moment the disengagement of harvester and binder takes place.

To guard against accidental dropping or sag- 5 5 the adjacent end of the supporting-bar, whereby when the binder-arm is withdrawnbeneath the table it will lock with said bar and tend to hold or thrust it up, preventing it positively'from sagging until relieved by the ascent of said arm in the binding action. For this device Letters Patent of the United States No. 2e2,17 7 were granted me on the 31st day of May, 1881, and afterward reissued as No. 10,106 on May 9, 1882.

At the foot of the chute, outside of the compressing-fingers, it is customary to place a hinged leaf or tail-board connected by means 7 5 of a link with the supporting-bar, so that as long as the latter is up in the collecting and binding operation the leaf will be closed as a secondary guard against escape of grain, but

when the supporting-bar falls will be thrown 8o down to open the chute.

My present invention introduces the following changes in the organization of the machine thus briefly sketched: In the first place, the

cam-track 011 the master-wheel is dispensed with, as well as all the intermediate mechanism connecting it with the supporting bar, and said supp orting-bar is sustained by toggle-arms connecting it with a bracket from the frame, and themselves rule-jointed, so as to look when 0 they are in line or slightly past the line with each other, and hold the bar up, but be readily pushed out of line in the other direction to permit the bar to fall. Next, a shouldered push-rod is attached to the heel of the binder- 9 5 arm to catch upon a pin on one of the toggles and push them out of line as the binder-arm is withdrawn beneath the table, to break their lock and allow the supporting-bar to fall and open the grain-chute, the supporting-bar be ing immediately raised again by the hereinbefore-mentioned shoulders upon the heel of the r binder-arm and its own contiguous end and the toggles thereby brought back to position, aided, if necessary, by slight spring=pressure1n their joint, or external thereto, or by a weight. Finally, instead of connecting the tail-board to the supporting-bar by a link, the end of said supporting-bar is prolonged until it comes beneath the tail-board, and is there furnished with a cam-plate or bracket having a curved cam-track, which engages with a pin or roller on an arm projecting outwardly from the tailboard and operates upon it in such manner" that as the supporting-bar falls the tailboard is permitted to open until it reaches a position in line with the decking, or even lower, if desired, and as the supporting-bar rises the board is gradually closed and returned to its original position, where it will be held as long as the bar is up. I

In the drawings, Figure 1 represents a front end elevation of a binding attachment embodying my invention, and Fig. 2 a detail showing the compressing -fingers and supporting-bar beneath the floor of the grain-chute and the tail-board down.

A is the post-frame, B tubular sustainingbars, and O the flooring or decking of the grain-chute. The packing-arms it is not considered necessary to show; but if employed they will be driven in any suitable-as, for instance, by cranks upon the constantly-rotating shaft D. The loose pinion (1 upon this shaft, intermittingly engaged therewith by the tripping-clutch E, intermeshes with the gear-wheel F, which, by means of an intermediate wheel, F, sets in motion the master-wheel G of the binder. A. wrist-pin on this master-wheel connects by a pitman, G, with a crank, g, from the binder-arm shaft and causes the vibrations serve simply as compressors.

of the binder-arm H as the wheel rotates.

The ordinary tripping-dog, 1', actuated by means of a lifter t", on the end of the rockshaft I, which bears at its other end the triplever 2' is shown by way of illustration-as the instrumentality' for causing the intermittent action of the tripping-clutch to set the train of gear-wheels in motion. The supportingbar K is, as heretofore, pivoted to a heel-extension, 70, from the binder-arm, and upon this supporting-bar the compressing-fingers K are either pivoted or rigidly secured, according as they are made to actuate the trip-lever or to Herein their office is supposed to be the former.

I Upon the heel of the binder-arm is a lug or shoulder, h, and upon the adjacent end of the supporting-bar 'is a corresponding shoulder or stop, is, whereby the binder arm is locked working. upon a rule-joint, Z, which permits them to go slightly inside of theline, each with each, as indicated in Fig. 1 of the drawings, so that while holding the supporting-bar.in

the elevated position shown they may run no bound sheaf within the chute.

The most desirable means for automatically breaking this look known to me at present is the push-bar M, which I pivot to the heel of the binder-arm somewhat beneath and farther out than the pivot of the supporting-bar. Near its free end,'but set a little back therefrom, it has a shoulder, m, which, in the descent of the binder-arm, strikes against a pin, m, on the upper toggle, and pushes both back, so as to break the lock they have formed, and cause them to fold together to .open the compressor. The shoulder, as stated, is not at the extreme end of the push-bar, and for this reason, that a it is desirable a portion should be left 7 which may rest upon the pin 011 the toggle-arm while the binder-arm is up, and serve as a guide to bring the shoulder certainly against the pin in the initial descent of said arm;

Immediately after the compressor has been opened it is to be returned to position, the bound sheaf having been discharged in the meantime, and this return takes place during the latter part of the descent of the binderarm, and is caused, as already stated, by the action of said arm forcing the supportingbar up. Were the shoulder on the push-bar still in contact with the pin on the toggle at the moment this ascent of the supporting-bar and compressor-fingers is required to commence, the result would be an absolute block or a break of themachinery, since the toggles could not be opened or straightened, and without this the supporting-bar could not be raised. Therefore a shoulder or projection, on, is formed upon the push-bar beyond or inside of its pivotal attachment to the heel of the binderarm, which comes against a seat or stop on said heel slightly before the binder-arm interlocks with the supporting-bar, and causes said push-bar to be lifted away from the pin on the toggle or hinged brace in the interval before such lock takes place. Thus at the moment they supporting-bar is to commence'its rise the push-bar will be disengaged from the pin, and the action will take place smoothly and easily.

The binding-arm alone might not carry the supporting-bar sufficiently high'to bring the loo toggles into line 'with each other, and in any event could not well, without other mechanism not now shown, cause the toggles to go beyond a precisely straight line, as has been thought advisable. Therefore a spring of not very great strength may be coiled inside the joint, and so attached or seated to the two members of the toggle or brace as to force tliem'past thev supporting-bar immediately thereafter again side of the compressing-fingers, is pivoted a inbefore set forth, of the compressing-fingers,

gavel and into the knotter or band-securing mechanism, the supporting-bar, relieved from its sustaining contact with said arm, will yet be held up by means of the toggles. The pushbar, however, as the arm ascends, will be gradually lowered until it rests upon and is drawn over the pin on the toggle, bringing its shoulder again inside of that pin. Then, the gavel having been bound and the binder-arm beginning to recede, the push-bar will asec- 0nd time break the lock the supporting-bar will fall, the bound sheaf be ejected, and the rise to bring the compressor-arms into posi tion to intercept the incoming stream, and the toggle be reset to hold it in that elevated position. i

At the foot of the grain-chute, behind or outleaf or tail-board, N. To this tail-board is fastened the arm or casting a, carrying a pin or roller, 91', atits point. Upon the end of the suppOrtingbar, which is suitably prolonged to bring it beneath the tail-board, is fixed the cam-plate or bracket 0, having a curved camtrack, 0, which engages with the pin or roller on the tail-board casting. The shape of this cam-track is such that when the'supportingbar is up it will have lifted the roller traveling upon it into such position that the tailboard will be closed to intercept straw coming down the chute; but as the supportingbar falls away from the decking the tail-board will be permitted to gradually descend, its roller coming up the cam-track toward the op posite end from that where it had been previ ously resting.

In order to make the arrangement more compact, bringing the roll or pin nearer to the tailboard and shortening the supporting-bar, the point of the cam-plate may be allowed to pass through a slot in the lower part of said bar. This will not in any way interfere with its functions; but if thereshould prove to be any unforseen objection to it the supporting-bar may be sufficiently lengthened and the roller set so far out fromthe tail-board as to entirely obviate any necessity for it. u

1. claim as my invention 1. The combination, substantially as here inbefore set forth, of the compressingfingers, the pivoted supporting-bar, and the hinged brace or toggle.

2. The combination, substantially as heretheir pivoted supportingbar, the brace or toggle having a rule-j oint,whereby it locks in e);- tension to sustain the supportingbar in its elevated position, and means to break the lock and cause the toggle-arms to fold together to depress said supporting-bar.

3. The combination, substantially 'as here inbefore set forth, of the compressing-fingers,

their pivoted supportingbar, the rule-jointed brace or toggle whereby the supporting-bar is sustained, and the push-bar operated by the needle in the descent to force the toggle-arms out of line and cause them to hinge or fold to depress the supporting-bar.

4. The combination, substantially as hereinbefore set forth, of the compressing-fingers, their. supporting-bar pivoted to a heel-eXtension of the binding-arm, the locking shoulders or stops on said bar and arm,whereby the bar is lifted by the binder-arm in its descent, the

rule-jointed brace or toggle sustaining said bar, and the push-bar carried by the heel of the binder-arm to break the locked joint of said toggle and cause it to hinge or fold as the binder-arm begins its descent to depress the the supporting-bar.

5. The combination, substantially as here inbefore set forth, of the compressing-fingers, their supporting-bar pivoted to the heel extension of the binder-arm, and having a stop against which a shoulder on said heel comes in the continued descent of the binder-arm after the sheaf has been ejected to'raise the bar, the'rule-jointed brace or toggle which sustains the bar in its elevated position, and the push-bar pivoted also to the heel-extension of the binder-arm, and having a projection or stop which comes against said heel, whereby, as the binder-arm descends, the pushbar is first caused to unlock the toggle to permit the supporting-bar to fall and open the grainchute after the discharge of the bound sheaf, then the push-bar raised out of the way of the toggle by its contact with the binder-arm in its continued descent, and, finally, the sup porting-bar raised into its elevated position by the shoulder on its bindingarm, as the latter approaches and reaches its position of rest, and the toggle brought into its effective looking position to sustain said bar. 7

6. The combination, substantially as hereinbefore set forth, of the grain-chute, the hinged leaf or tail-board,with its projecting bracket and pin or roller, and the cam-plate, with its curved track 011 the end of the sup porting-bar, acting against said pin or roller to open and close the the hinged leaf as the supporting-bar falls and rises again to its elevated position.

'7. The combination, substantially as hereinbefore set forth, of the compressing-fingers, their pivoted supporting-bar, the cam-plate on the end of the latter having a curved track, the pivoted leaf or tail-board,with its bracket and roller traveling 011 said track, the rule jointed brace or toggle sustaining the supporting-bar, and thepush-bar for breaking the lock in said brace or toggle and causing it to hinge or fold to depress the supporting-bar, and the binder-arm operating said push-bar and acting to again elevate the sustainingbar. WILLIAM R. BAKER.

lVitnesses:

JOHN V. A. Hasnnoon, XV. R. SELLnoK. 

